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ACT8891

Active-Semi
Part Number ACT8891
Manufacturer Active-Semi
Description Advanced PMU
Published Jan 9, 2014
Detailed Description ® ACT8891 Product Brief, 05-Dec-11 Advanced PMU for Rockchip RK2918 Processor FEATURES • • • • • • • Optimized for Ro...
Datasheet PDF File ACT8891 PDF File

ACT8891
ACT8891

Overview
® ACT8891 Product Brief, 05-Dec-11 Advanced PMU for Rockchip RK2918 Processor FEATURES • • • • • • • Optimized for Rockchip RK2918 Processor Three Step-Down DC/DC Converters Four Low-Dropout Linear Regulators I2CTM Serial Interface Advanced Enable/Disable Sequencing Controller Minimal External Components Tiny 4×4mm TQFN44-32 Package − 0.
75mm Package Height − Pb-Free and RoHS Compliant GENERAL DESCRIPTION The ACT8891 is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the Rockchip RK2918 processor.
This device features three step-down DC/DC converters and four low-noise, low-dropout linear regulators.
The three DC/DC converters utilize a highefficiency, fixed-frequency (2MHz), current-mode PWM control architecture that requires a minimum number of external components.
Two DC/DCs are capable of supplying up to 1150mA of output current, while the third supports up to 1300mA...


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